Nested property type in the same package can not be accessed

[hantsy]

I tried to create a record type like this.

public record Customer(
        String firstName,
        String lastName,
        Optional<PhoneNumber> phoneNumber,
        ...
) {
}
record PhoneNumber(...){}

When access the phoneNumber via EL, it will throw exception like this.

Caused by: java.lang.IllegalAccessException: class jakarta.el.RecordELResolver cannot access a member of class com.example.PhoneNumber with modifiers "public"
	at java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:400)
	at java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:670)
	at java.base/java.lang.reflect.Method.invoke(Method.java:556)
	at jakarta.el.RecordELResolver.getValue(RecordELResolver.java:76)
	... 16 more

If I move the PhoneNumber into a standalone file and add a public modifier, it will work.

// Customer.java
public record Customer(
        String firstName,
        String lastName,
        Optional<PhoneNumber> phoneNumber,
        ...
) {
}

// PhoneNumber.java
public record PhoneNumber(...){}

The example project can be found here.

1. Clone the project.
2. Remove the standalone nested properties related files.
3. Uncomment the record types in the Customer
4. Run the test.